Case-based design browser to aid human developers in reuse of previous design concepts

2002 ◽  
Author(s):  
J.J. Ockerman ◽  
C.M. Mitchell ◽  
W.J. Potter
Keyword(s):  
Design Concepts ◽  
Previous Design ◽  
Case Based

scholarly journals Research on new creative conceptual design system using adapted case-based reasoning technique

2016 ◽  
Vol 31 (1) ◽  
pp. 16-29 ◽  
Author(s):  
Jie Hu ◽  
Jin Ma ◽  
Jin-Feng Feng ◽  
Ying-Hong Peng
Keyword(s):  
Knowledge Representation ◽  
Conceptual Design ◽  
Design System ◽  
Design Knowledge ◽  
Case Based Reasoning ◽  
Pump Design ◽  
Design Models ◽  
Representation Model ◽  
Previous Design ◽  
Case Based

AbstractCreative conceptual design requires significant previous design knowledge. Case-based reasoning enables learning from previous design experience and has a great potential in supporting creative conceptual design by means of seeking to retrieve, reuse, and revise most appropriate cases to generate inspired solutions. However, traditional case-based reasoning based creative conceptual design models focus on design strategies research, pay little attention to defining a consistent knowledge representation model, and neglect the research to make various types of knowledge retrieval tractable. Faced with such drawbacks, the expected design knowledge cannot be retrieved properly, especially in cases where multidisciplinary knowledge is concerned or exact query terms are absent. In order to solve these issues, this paper presents a combined approach to support creative conceptual design process. First, function–behavior–structure knowledge cell is introduced as a unified consistent design knowledge representation model. Second, a hybrid similarity measure is proposed to increase the overall possibility of obtaining useful design knowledge by considering semantic understanding ability. Third, an intelligent creative conceptual design system has been developed with a case study of a novel insulin pump design to demonstrate its usage, and two experiments are conducted to evaluate the performance of the proposed approach. The results show that the proposed approach outperforms other case-based reasoning based creative conceptual design models.

Functional Modeling, Reverse Engineering, and Design Reuse

2002 ◽  
Author(s):  
Paul Gietka ◽  
Manish Verma ◽  
William H. Wood
Keyword(s):  
Reverse Engineering ◽  
Solution Space ◽  
Design Reuse ◽  
Functional Design ◽  
Functional Information ◽  
Concept Generation ◽  
Functional Modeling ◽  
Design Concepts ◽  
Natural Foundation ◽  
Case Based

Experience is a tremendous asset for any designer. To leverage the experience of many designers, a general methodology for case-based functional design is required. Function-based design is a natural foundation for this methodology because its goal is to structure the solution space and support concept generation. Gaining access to experience about how functions combine will help designers to explore more, better design concepts. This experience is gleaned by reverse engineering existing products and storing and indexing the information gained. This work studies the preliminary steps in matching functional information derived from reverse engineering to that generated in the design process. A language of function developed for reverse engineering is tested in the context of design.

A Case Retrieval Method in Case-Based Fixture Design

2012 ◽  
Vol 586 ◽  
pp. 282-287
Author(s):  
Yun He ◽  
Fa Ping Zhang ◽  
Zhan Chun Sun ◽  
Bo Gao ◽  
Juan Han
Keyword(s):  
Design Process ◽  
Design System ◽  
Design Knowledge ◽  
Fixture Design ◽  
Retrieval Method ◽  
Weighted Algorithm ◽  
Previous Design ◽  
Semantic Attribute ◽  
Cbd Method ◽  
Case Based

Most fixture design process are based on the reuse of the previous design knowledge and experience, in this paper, we use a case-based design (CBD) method to design fixture. Based on the analysis of various CBD methods, we found that most methods used to calculate the similarity between new part and cases are too single, so we put forward a method combining the semantic attribute similarity and the shape similarity together, use a weighted algorithm to calculate the similarity. Using this method, we designed a Fixture Design System on CATIA V5 R19, and use this system to retrieve and design fixture, the retrieved results are more close to the new part and reusable, the design process is more efficient.

scholarly journals Investigating the Case-Based Reasoning Process During HCI Design

2015 ◽  
Vol 6 (1) ◽  
pp. 1
Author(s):  
José Antonio Gonçalves Motta ◽  
Simone Diniz Junqueira Barbosa
Keyword(s):  
Interaction Design ◽  
Human Interaction ◽  
Design Knowledge ◽  
Design Activity ◽  
Case Based Reasoning ◽  
Access Methods ◽  
Reflective Process ◽  
New Ideas ◽  
Previous Design ◽  
Case Based

Given that the design activity makes use of previous design knowledge, we turned to case-based reasoning (CBR) to help identify opportunities to support the design of human-computer interaction (HCI). Using interviews with professional designers and Semiotic Engineering, we developed a CBR tool called CHIDeK (Computer-Human Interaction Design Knowledge), with which we conducted a study to observe how it influenced the HCI design activity. We found that the cases recorded in CHIDeK supported design by motivating the designers’ reflective process, triggering their memories of experiences with similar systems, and helping to generate new ideas. We have also identified limitations in our case representation and case access methods, which offer opportunities for further research.

Pulse Current Characterization of SiC GTO Thyristors with Etched JTE

2013 ◽  
Vol 740-742 ◽  
pp. 986-989
Author(s):  
Sigo Scharnholz ◽  
Ralf Hassdorf ◽  
Gontran Pâques ◽  
Bertrand Vergne ◽  
Dominique Planson
Keyword(s):  
Pulse Current ◽  
Pulsed Power ◽  
Switching Behavior ◽  
Design Concepts ◽  
Turn On ◽  
Previous Design ◽  
Current Characteristics ◽  
A Current ◽  
Peak Value

In this paper we highlight our latest results on high voltage SiC thyristors comprising an etched JTE. Compared to our previous design concepts, the thyristors described here are larger in size and have been investigated regarding pulsed power applications. Quasi-static on-state characteristics show that the devices withstand a repetitive current load of up to 16 A corresponding to a current density of 825 A/cm2. Their switching behavior was evaluated up to 1000 V demonstrating characteristic waveforms at turn-on and gate turn-off. Moreover, pulsed current characteristics show that the typical device under test sustained a current pulse of 20 μs with a peak value of 200 A and 10 kA/cm2, respectively.

scholarly journals Case-based design: A review and analysis of building design applications

1997 ◽  
Vol 11 (1) ◽  
pp. 59-87 ◽  
Author(s):  
Ian Watson ◽  
Srinath Perera
Keyword(s):  
Process Design ◽  
Ethical Issues ◽  
Building Design ◽  
Detailed Comparison ◽  
Case Based Reasoning ◽  
Case Representation ◽  
Previous Design ◽  
Design Solutions ◽  
Legal And Ethical Issues ◽  
Case Based

AbstractThis paper presents a review of CBD and its application to building design in particular. Case-based design is the application of case-based reasoning to the design process. Design maps well to case-based reasoning because designers use parts of previous design solutions in developing new design solutions. This paper identifies problems of case representation, retrieval, adaptation, presentation, and case-based maintenance along with creativity, legal, and ethical issues that need to be addressed by CBD systems. It provides a comprehensive review of CBD systems developed for building design and provides a detailed comparison of the CBD systems reviewed.

A study in applying case-based reasoning to engineering design: Mechanical bearing design

2003 ◽  
Vol 17 (3) ◽  
pp. 235-252 ◽  
Author(s):  
XIAOLI QIN ◽  
WILLIAM C. REGLI
Keyword(s):  
Engineering Design ◽  
Constraint Satisfaction ◽  
Engineering Problem ◽  
Problem Definition ◽  
Case Based Reasoning ◽  
Design Problems ◽  
Engineering Design Problems ◽  
Previous Design ◽  
Bearing Design ◽  
Case Based

Case-based reasoning (CBR) is a promising methodology for solving many complex engineering design problems. CBR employs past problem-solving experiences when solving new problems. This paper presents a case study of how to apply CBR to a specific engineering problem: mechanical bearing design. A system is developed that retrieves previous design cases from a case repository and uses adaptation techniques to modify them to satisfy the current problem requirements. The approach combines both parametric and constraint satisfaction adaptations. Parametric adaptation considers not only parameter substitution but also the interrelationships between the problem definition and its solution. Constraint satisfaction provides a method to globally check the design requirements to assess case adaptability. Currently, our system has been implemented and tested in the domain of rolling bearings. This work serves as a template for application of CBR techniques to realistic engineering problems.

High resolution at low voltage: A new approach

1989 ◽  
Vol 47 ◽  
pp. 76-77
Author(s):  
Arthur V. Jones
Keyword(s):  
Low Voltage ◽  
Emission Sources ◽  
New Approach ◽  
Design Concepts ◽  
Probe Diameter ◽  
Low Voltage Operation ◽  
Sufficient Intensity ◽  
Electron Microscopes ◽  
Scanning Electron Microscopes ◽  
Immersion Type

With the introduction of field-emission sources and “immersion-type” objective lenses, the resolution obtainable with modern scanning electron microscopes is approaching that obtainable in STEM and TEM-but only with specific types of specimens. Bulk specimens still suffer from the restrictions imposed by internal scattering and the need to be conducting. Advances in coating techniques have largely overcome these problems but for a sizeable body of specimens, the restrictions imposed by coating are unacceptable.For such specimens, low voltage operation, with its low beam penetration and freedom from charging artifacts, is the method of choice.Unfortunately the technical dificulties in producing an electron beam sufficiently small and of sufficient intensity are considerably greater at low beam energies — so much so that a radical reevaluation of convential design concepts is needed.The probe diameter is usually given by

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